Smoke-consuming furnace



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0. H. B. EYSER. SMOKE OONSUMING FURNACE.

Nor 416,671. Patented Dec. 3, 1889.

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O. H. B. EYSER. SMOKE OONSUMING FURNACE.

No. 416,671. Patented'Deo. 3.1889.

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OTTILIA H. B. EYSER, OF DENVER, COLORADO.

SMOKE-CONSUMl-NG FURNACE.

SPECIFICATION forming part of Letters Patent No. 416,671, dated December 3, 1889. Application filed June 12, 1889. Serial No. 314,063. (No model.)

- tion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accom-i panying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to a smoke-consuming attachment for furnaces, more especially intended for use with locomotive-engines. It is known that with such engines the combustion of the fuel is very imperfect, large amounts of heating material passing off in the shape of smoke. This waste not only involves a large expenditure of money, but is also a great source of annoyance to those living in the neighborhood of railroad-tracks and passengers on trains. It has long seemed desirable, therefore, that some means should be furnished, or that the furnace should be so constructed as to insure a more perfect combustion of the carbon, that the annoyances and inconveniences of clouds of smoke might be done away with and the heat-giving capacity of the fuel more fully utilized.

The objects of my invention are to construct such a furnace, one in which the combustion shall be more thoroughly effected and the steam-generating power of the fuel more thoroughly utilized, a furnace involving the addition of a few and simple elements, readily applied to boilers newly constructed or asrepairs to old boilers, readily managed and controlled, reliable, and efficient; to which ends the invention consists in the features, constructions, and combinations more particularly hereinafter described and claimed.

In the drawings is illustrated an embodiment of the invention, Figure 1 thereof being a central vertical section with the parts in one position, and Fig. 2 a similar section with the parts .in another position. Figs. 3 and 4 are front or end views of the cinderchamber with the exhaust-pipe in different positions, the front plate on end being re moved to show the more clearly the interior construction. y

In the figures, the reference-numeral 1 indicates the body of the boiler, a locomotiveboilerbeing used herein as typical of any front end of the boiler controlled by the damper 11. Such pipe bends down and is carried into the fire-box 2, opening thereinto at the point 14. This pipe 8 passes through the stack 4, there being a damper 10 located at the intersection of the pipe and the stack that communication between the two may be either permitted or out OK. The exhauststeam pipe 5 also passes into such pipe 8, there being an opening 16 into the pipe 8 apart from the smoke-chamber 3, and part of which only is filled by the exhaust-pipe 5. The upper end in such exhaust-pipe is formed with a swivel or pivoted portion 6,which may be turned upwardly, the damper 10 being opened to throw the exhaust-steam into the stack, or which may be turned to throw the exhaust-steam through the pipe 8 into the furnace 2 at the point 14.

With the construction thus set forth, when the fire is first started in the furnace 2 the damper 10 is opened, the damper 11 is closed, and the swiveled end of the exhaust-pipe 5 is turned upwardly to throw the exhaust into the stack 4. In this condition the draft from the furnace is in the usual and ordinary way. The fire being well started and the mass of fuel in the furnace in a state of thorough combustion, the damper 10 is closed, the

damper 11 is opened, and the swiveled end 6 is turned to throw the escape through the pipe 8 through its outlets 14. This exhaustjet through the pipe 8 causes the products of combustion reaching the chamber 3 through the flue 17 to be drawn into the pipe 8 through the opening 16 and conveyed through such pipe, together with fresh air admitted through the damperll, into the furnace 2, the smoke or unconsumed products of combustion being thus sent through the fire again, a perfect circulation being kept up through the furnace, the flues, thechamber, and the pipe 8. All of such products of combustion mingle with the fresh air and oxygen necessary for their proper combustion. It may happen, however, that the air taken in through the damper-opening 11 and mingled with the exhaust-steam is not sufficient for the proper combustion. To insure the proper supply of such air, one or more extra tubes may be situated upon the boiler, opening at their ends in the air at any convenient points, their inner ends being carried down within the furnace, so as to discharge thereinto.

The dampers 10 11 and swivel 6 are controlled by any suitable draw rods or cords 12 13 18, ending in a position convenient to the engineer or party in charge of the engine.

This construction and arrangement forms a readily-applied, easily-constructed, and efficient smoke-consumer, accomplishing fully the objects of my invention as hereinbefore set forth.

Having thus described my invention what I claim is 1. A smoke-consuming attachment consisting of a pipe opening into the air at one end and into the furnace at the other, and having a damper controlling the air-inlet, and a steamexhaust pipe having a swiveled or jointed end or nozzle and a connection therefrom, whereby the issuing jet may be thrown at will either into the stack or into such pipe, substantially as set forth.

2. The combination, with a furnace, of a pipe 8, having air-inlet damper 11, the stack 4, having damper 10, and the exhaust-pipe 5, having swiveled end 6, substantially as set forth.

3. The combination, with a furnace, of the pipe 8, having air-inlet damper 11, the stack 4, having damper 10, the eXhaust-pipe.5,hav

ing swiveled end 6, and the extra air-pipes 15, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

OTTILIA H. B. EYSER.

Witnesses:

Z. F.- WiLBER, WM. KowALsKI. 

